Cabling > Using Bundles > Bundle Grouping Property
  
Bundle Grouping Property
Bundles can be grouped as round or flat. After you create a bundle, you must group the cables. Use one of the following grouping types:
Round—Packs the cables together in a round grouping. This corresponds to the ROUND value for the BUNDLE_TYPE parameter.
Flat—Packs the cable together in a flat grouping. This corresponds to the FLAT value for the BUNDLE_TYPE parameter. The bundle diameter is equivalent to the total thickness of each individual component of the bundle.